Home / 648,834,433.60-973,346,128.80-212,029,297.60

Finding the Fourth Proportional to 648,834,433.60, 973,346,128.80 and 212,029,297.60

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Solution

The fourth proportional to 648,834,433.60, 973,346,128.80 and 212,029,297.60 is: 318,074,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,834,433.60 : 973,346,128.80 = 212,029,297.60 : x
  2. Step 2: Convert to fraction form
    648,834,433.60/973,346,128.80 = 212,029,297.60/x
  3. Step 3: Cross multiply
    648,834,433.60x = 973,346,128.80 × 212,029,297.60
  4. Step 4: Simplify right side
    648,834,433.60x = 206,377,896,011,143,104
  5. Step 5: Solve for x
    x = 206,377,896,011,143,104/648,834,433.60
  6. Step 6: Final answer
    x = 318,074,820.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.